<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Copyright 2007-2008 Michele Mostarda ( michele.mostarda@gmail.com ).<a name="line.2"></a>
<FONT color="green">003</FONT>     * All Rights Reserved.<a name="line.3"></a>
<FONT color="green">004</FONT>     *<a name="line.4"></a>
<FONT color="green">005</FONT>     * Licensed under the Apache License, Version 2.0 (the 'License');<a name="line.5"></a>
<FONT color="green">006</FONT>     * you may not use this file except in compliance with the License.<a name="line.6"></a>
<FONT color="green">007</FONT>     * You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an 'AS IS' BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    package com.asemantics.rdfcoder.inspector;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.ArrayList;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.util.List;<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>    /**<a name="line.24"></a>
<FONT color="green">025</FONT>     * Default implementation of {@link InspectorParser}.<a name="line.25"></a>
<FONT color="green">026</FONT>     */<a name="line.26"></a>
<FONT color="green">027</FONT>    public class InspectorParserImpl implements InspectorParser {<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>        /**<a name="line.29"></a>
<FONT color="green">030</FONT>         * List of applicable patterns for this parser.<a name="line.30"></a>
<FONT color="green">031</FONT>         */<a name="line.31"></a>
<FONT color="green">032</FONT>        private List&lt;Pattern&gt; applicablePatterns = new ArrayList&lt;Pattern&gt;();<a name="line.32"></a>
<FONT color="green">033</FONT>    <a name="line.33"></a>
<FONT color="green">034</FONT>        public Pattern[] parse(final String expression) throws InspectorParserException {<a name="line.34"></a>
<FONT color="green">035</FONT>            if(expression == null) {<a name="line.35"></a>
<FONT color="green">036</FONT>                throw new InspectorParserException("Invalid expression: null");<a name="line.36"></a>
<FONT color="green">037</FONT>            }<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>            String[] parts = expression.contains(PATH_SEPARATOR) ? expression.split("\\" + PATH_SEPARATOR) : new String[] { expression };<a name="line.39"></a>
<FONT color="green">040</FONT>            if(parts.length == 0) {<a name="line.40"></a>
<FONT color="green">041</FONT>                throw new InspectorParserException("Invalid expression: '" + expression + "'");<a name="line.41"></a>
<FONT color="green">042</FONT>            }<a name="line.42"></a>
<FONT color="green">043</FONT>    <a name="line.43"></a>
<FONT color="green">044</FONT>            // Trims and validates all parts.<a name="line.44"></a>
<FONT color="green">045</FONT>            int l,location = 0;<a name="line.45"></a>
<FONT color="green">046</FONT>            for(int i = 0; i &lt; parts.length; i++) {<a name="line.46"></a>
<FONT color="green">047</FONT>                l = parts[i].length();<a name="line.47"></a>
<FONT color="green">048</FONT>                parts[i] = parts[i].trim();<a name="line.48"></a>
<FONT color="green">049</FONT>                validatePart(parts[i], location);<a name="line.49"></a>
<FONT color="green">050</FONT>                location += l;<a name="line.50"></a>
<FONT color="green">051</FONT>            }<a name="line.51"></a>
<FONT color="green">052</FONT>    <a name="line.52"></a>
<FONT color="green">053</FONT>            Pattern[] patters = new Pattern[ parts.length ];<a name="line.53"></a>
<FONT color="green">054</FONT>            Pattern applicablePattern;<a name="line.54"></a>
<FONT color="green">055</FONT>            String part;<a name="line.55"></a>
<FONT color="green">056</FONT>            for(int i = 0; i &lt; parts.length; i++) {<a name="line.56"></a>
<FONT color="green">057</FONT>                part = parts[i];<a name="line.57"></a>
<FONT color="green">058</FONT>                applicablePattern = findApplicablePattern(part);<a name="line.58"></a>
<FONT color="green">059</FONT>                if( applicablePattern == null ) {<a name="line.59"></a>
<FONT color="green">060</FONT>                    throw new InspectorParserException("Cannot find an applicable pattern for part '" + part + "'");<a name="line.60"></a>
<FONT color="green">061</FONT>                }<a name="line.61"></a>
<FONT color="green">062</FONT>                patters[i] = applicablePattern;<a name="line.62"></a>
<FONT color="green">063</FONT>            }<a name="line.63"></a>
<FONT color="green">064</FONT>            return patters;<a name="line.64"></a>
<FONT color="green">065</FONT>        }<a name="line.65"></a>
<FONT color="green">066</FONT>    <a name="line.66"></a>
<FONT color="green">067</FONT>        public void registerApplicablePattern(Pattern pattern) {<a name="line.67"></a>
<FONT color="green">068</FONT>            applicablePatterns.add(pattern);<a name="line.68"></a>
<FONT color="green">069</FONT>        }<a name="line.69"></a>
<FONT color="green">070</FONT>    <a name="line.70"></a>
<FONT color="green">071</FONT>        public void deregisterApplicablePattern(Pattern pattern) {<a name="line.71"></a>
<FONT color="green">072</FONT>            applicablePatterns.remove(pattern);<a name="line.72"></a>
<FONT color="green">073</FONT>        }<a name="line.73"></a>
<FONT color="green">074</FONT>    <a name="line.74"></a>
<FONT color="green">075</FONT>        protected Pattern findApplicablePattern(String part) {<a name="line.75"></a>
<FONT color="green">076</FONT>            for(Pattern pattern : applicablePatterns) {<a name="line.76"></a>
<FONT color="green">077</FONT>                if( pattern.isApplicable(part) ) {<a name="line.77"></a>
<FONT color="green">078</FONT>                    return pattern.getInstance(part);<a name="line.78"></a>
<FONT color="green">079</FONT>                }<a name="line.79"></a>
<FONT color="green">080</FONT>            }<a name="line.80"></a>
<FONT color="green">081</FONT>            return null;<a name="line.81"></a>
<FONT color="green">082</FONT>        }<a name="line.82"></a>
<FONT color="green">083</FONT>    <a name="line.83"></a>
<FONT color="green">084</FONT>        private void validatePart(String part, int beginLocation) throws InspectorParserException {<a name="line.84"></a>
<FONT color="green">085</FONT>            if(part.length() == 0) {<a name="line.85"></a>
<FONT color="green">086</FONT>                throw new InspectorParserException("Invalid part: '" + part + "'", beginLocation);<a name="line.86"></a>
<FONT color="green">087</FONT>            }<a name="line.87"></a>
<FONT color="green">088</FONT>        }<a name="line.88"></a>
<FONT color="green">089</FONT>    <a name="line.89"></a>
<FONT color="green">090</FONT>    }<a name="line.90"></a>




























































</PRE>
</BODY>
</HTML>
